Answer:
see explanation.
Step-by-step explanation:
2(10 * 4 * 7) is a surface area.
7 * 4 * 10 is volume.
2(10 * 4 + 10 * 7 + 4 * 7) is surface area.
10 + 4 + 7 is neither.
2 * 7 * 4 + 2 * 10 * 7 + 2 * 4 * 10 is neither.
hope this helps.
Well, there are lots, but if you get rid of the parenthesis...
you would get 21c and that equals to 7(3c).
The answer is A (a mountain climber descending a mountain.
This sis the answer because it is the only option with a decrease. When something decreases, a negative value (a number) represents the amount it decreased.
Happy to help!
I think it’s the last one
Answer:
x=3,y=7
Step-by-step explanation:
8x+3y=45
2x+3y=27
8x-2x=6x
45-27=18
<u>6</u><u>x</u><u>=</u><u>1</u><u>8</u>
6. 6
x=3
2x+3y=27
2(3)+3y=27
6+3y=27
3y=27-6
<u>3</u><u>y</u> = <u>2</u><u>1</u>
3. 3
y=7